Home / 138,182.20-207,273.30-105,004.60

Finding the Fourth Proportional to 138,182.20, 207,273.30 and 105,004.60

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Solution

The fourth proportional to 138,182.20, 207,273.30 and 105,004.60 is: 157,506.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,182.20 : 207,273.30 = 105,004.60 : x
  2. Step 2: Convert to fraction form
    138,182.20/207,273.30 = 105,004.60/x
  3. Step 3: Cross multiply
    138,182.20x = 207,273.30 × 105,004.60
  4. Step 4: Simplify right side
    138,182.20x = 21,764,649,957.18
  5. Step 5: Solve for x
    x = 21,764,649,957.18/138,182.20
  6. Step 6: Final answer
    x = 157,506.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.